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1、适用范围 本标准规定了轴承金属材料的压缩试验方法。 本标准所述的压缩试验,是在试样横截面均匀分布的轴向压缩载荷作用下,测得的金属材料的特性。为此,要对具有原始横截面为So的圆筒形试样进行缓慢地压缩,并测量所加的压力。 2、定义 2.1压缩应力(正压缩应力)σ_d: 在压缩试验的任何瞬时,压力 F与试样原始横截面积So之比 σ_d=F/So……………………………(1) 2.2压缩强度σ_(dB):
1, the scope of this standard specifies the bearing metal compression test method. The compressive test described in this standard is the characteristic of metallic materials measured under the axial compressive load evenly distributed in the cross section of the sample. For this purpose, a cylindrical specimen with a primary cross-section of So is to be slowly compressed and the applied pressure measured. 2, DEFINITIONS 2.1 Compressive stress (positive compressive stress) σ_d: The ratio of pressure, F, to the original specimen cross-sectional area, So, at any instant of the compression test, σ_d = F / ) 2.2 Compressive strength σ_ (dB):